6A – 62 GENERAL ENGINE MECHANICAL
8. Piston and Connecting Rod
1) Try to insert the piston pin into the piston pin hole with
normal finger pressure.
Weigh each piston and connecting rod assembly.
Select piston and connecting rod combinations so that
the weight variation of the different assemblies is held
within the specified limits.
g (oz)
Variance in weight
after assembly
Less than 3
(0.1058)
2) Clamp the connecting rod in a vise.
Take care not to damage the connecting rod.
3) Use a pair of pliers to install the piston pin snap ring to
the piston.
NOTE:
When changing piston/connecting rod combinations,
do not change the piston/piston pin combination.
4) Install the piston to the connecting rod.
The piston head front mark
!
and the connecting rod
“ISUZU” casting mark
"
must be facing the same
direction.
5) Apply a coat of engine oil to the piston pin and the
piston pin hole.
Use your fingers to force the piston pin into the piston
until it makes contact with the snap ring.
6) Use your fingers to force the piston pin snap ring into
the piston snap ring groove.
Check that the connecting rod moves smoothly on the
piston pin.
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